What does Gold Ore Look Like?
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- Опубликовано: 7 сен 2024
- Asking what gold ore looks like might initially seem self-explanatory. Yet, not all valuable gold ore occurs as a bright yellow metallic piece. Gold can also occur within other minerals such as calaverite, or be disseminated in sedimentary rock.
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Sources/Citations:
[1] Mindat, www.mindat.org/
[2] Mindat, Calaverite, www.mindat.org...
[3] images-of-elem...
Specimen collection goals: Native copper, native silver, then one day native gold.
Most gold that has ever been mined...is still sitting outside of the mine, in giant piles. (It's the lower-quality ore, where extraction exceeds the value of the refined product.)
@@KathrynsWorldWildfireTracking Naw, you could definitely buy some monkeys and give them little hammers. Get border collies for the monkeys to ride with little prospector outfits so they look like regular miners from a distance.
I have em all, good luck getting platinum though, i got tiny bits off ebay for like $10 decade or so ago, ended up losing one trying to get a macro picture of them :'( I want a cubic one which is what they can form in at leas a cm ur looking at 4 figures ://
@@DonariaRegia hehe.
I once saw a 1cm wide gold vein in a mine shaft in the 1980s. It ran maybe 12-15 meters. (Porgera gold mine, Papua New Guinea).
That's what she said
Keep it up, guys!! I like your work and channel and I'm a subscriber!!
In my Economic Geology class one of our first assignments was to identify Gold under reflected light microscopy, Despite no guidance besides how to use the microscope, it was very obvious when ee found the gold
try finding gold amongst chalcopyrite veins
Does some electrum also occur naturally?
Yes it does
Telluride can contain a mix of gold and silver, or even gold and platinum, but as a native occurrence, electrum is actually quite common.
Great video! 99% of gold ore will not have _any_ visible gold. Fun Fact - we finally found out what nuggets are. Bacteria - that eats soil. They can't digest the gold...may take thousands of years for their "activity" - to form a pinky nail-sized nugget.
Except the nuggets you show and describe at the start are NOT from the earth, but panned from rivers etc. Thats why they're rounded, like all river stones.
Could you lot line the way gold is concentrated into vains? Like is it heated in a high pressure higher sulfur environment, forming sulfuric acid. Then metallic ions takes the place of one of the hydrogen atoms. This liquid then moves towards the surface, cooling and lowered temps, where it comes out of solution. That makes the deposits in vains.
Is this a process? Are there other processes? Is the process simular for other metals and that's why gold is found with other metals?
You are on the right track. Sulfur plays a major role in volcanic gold deposition. Think of a large hydrothermal hotspot under the surface which is largely containing felsic minerals and silica, but may also contain high concentrations of sulfur and an abundance of various heavy metals. As a volcano erupts and therefore loses pressure, certain elements may fall out of solution. Generally, the initial deposition is largely silica in fault fractures, thus making quartz veins, but calcium carbonates may also be deposited and later replaced by silica or other secondary deposition.
In the later phases of an eruption, heavier materials, often carried by an acidic solution of sulphuric acid, are gradually carried through the fault fractures. The acid begins to neutralize when it contacts the carbonates, and as a result of cooling and from lowering pressure as it reaches the upper crust and as earthquakes shift pressures underground, these saturated sulfide solutions can crystallize, often catching other elements in the solution. Gold is commonly associated with these sulfides (pyrites), but where large native gold is found, precipitates such as calcite may be the main associative mineral, although often the carbonates have been replaced. There are a number of carriers and catalysts for precipitation, and identifying the different conditions for gold deposition is not so cut and dry, but i think you have a good idea of how it works.
@@GemstonePhilosophy starling? Wow!!!! I feel like I hit the knowledge gold mine. Thanks. Can you point me to more? This is something I wondered about for years. Thanks. Really thanks!
True..the vain do like gold.
@@JustaReadingguy also, after reading my first comment, I realize I kind of melded the processes of hydrothermal deposition and volcanic eruptions which create gold deposits. There are bulk deposits aka "bananza" lode deposits which may be associated with large volcanic plugs, while there are secondary mineralization quartz veins which are made by hydrothermal activity. The chemistry works the same either way, but it is worth noting the difference in the two.
So, I guess I'm not allowed to share other channels because every time I comment just the name, not even a link, my comment disappears. A-s-k J-e-f-f W-i-l-l-i-a-m-s on yt
Surprised this doesn’t include white milky quartz gold ore, that which provided the hugest gold strikes of the California gold fields.
Thanks. I have heard that Gold gets its color from relativistic effects.
That rocks!
what i never new that
It looks brownish red
❤
Not all that is golden glitters.
Prompting me to sell some
🎉🎉🎉
If we stop using gold for millions pointless pieces of jewelry, we'd have more for technology.
If we didn't waste gold on disposable electronics, we'd have more gold for jewelry and bullion which holds its value opposed to just about any technology we make which generally depreciates in value and more often than not gets carelessly tossed in a landfill, or better yet, those electronic scraps are sent to places like Indonesia where impoverished people are paid a few dollars a day to handle toxic chemicals to extract the precious materials from your broken cell phone or laptop. Gold is a precious metal. It should be treated as such. As such, precious gems fit in this equation, and throughout all of history, people have adorned their precious jewels on precious metals and worn them sometimes, but really, the ruling class held these things because they are valuable. You could say that is value, as in, money has no value without being backed by something which is of value, and gold with precious gems is something you could say is valuable. Of course, I despise trinkets and synthetic stones on precious metals. It kind of defeats the purpose. People today have no idea how to value real things. They would prefer cheap electronics over financial wealth or freedom.
Jew-el-ry, not jew-ler-y.
AS IF you are the pronunciation cop.
Also, what are you going to do when the Brits spell it _jewellery_ , complain about spelling?
@@TheDanEdwards AS IF you are the cop of the pronunciation cops.
Two different words. He used the American English word, or mangled even worse than the first instance.
Snarky